Noise suppression of 0D/2D flexible photodetectors mediated with atomically thin F–C functionalization on graphene channel

Abstract

Understanding the charge-formation and current-extraction dynamics of a zero-dimensional/two-dimensional (0D/2D) hybrid system remains challenging. Here, by incorporating 0D carbon quantum dots with 2D F–C functionalized graphene, we designed UV photodetectors that exhibit an outstanding photoresponsivity of 4.66 × 10⁶ A W⁻¹ and noise-involved detectivity of 2.7 × 10¹⁷ jones, demonstrating frequency-dependent noise suppression.